Temporary support device and method for digging-anchoring separated roadway continual digging
A temporary support and roadway technology, applied in the fields of tunnels, underground space engineering, and coal mine safety production, can solve the problems of low roadway efficiency, inability to effectively adjust the roadway and support technology, etc. The effect of low efficiency and reduced production cost
Active Publication Date: 2019-08-23
HENAN POLYTECHNIC UNIV
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Problems solved by technology
[0004] At present, the existing temporary support methods include frontal beam support, "capped point column" support and "single + π beam" support, etc. However, due to the inability to effectively adjust the excavation and support process and realize parallel operations, the problem of low driving efficiency caused by frequent alternate operations of excavation and support processes has always existed
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[0039] Such as Figure 1-Figure 9 As shown, the roadway continuous excavation temporary support device for the separation of excavation and anchors of the present invention takes the direction from the excavation head to the outside of the roadway as the front to the rear, and includes a row of first main support roofs arranged in sequence from the front to the rear Beams 1-a and n rows of second main support roof beams 1-b, n is an integer greater than or equal to 1, the main support roof beams 1-a and the second main support roof beams 1-b are horizontal along the left and right directions Arrangement, between the second main support roof beams 1-b in odd rows and the second main support roof beams 1-b in even rows on the adjacent rear side, there is a roof telescopic beam 4, and the second main support beams in even rows Between the roof protection beam 1-b and the second main support roof beam 1-b in the odd-numbered rows adjacent to the rear side, as well as between the f...
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The invention discloses a temporary support device and method for digging-anchoring separated roadway continual digging. The temporary support device comprises a row of first main support protective top beams and n rows of second main support protective top beams, which are sequentially arranged from front to rear in a direction from a digging head to the outside of a roadway, wherein the main support protective top beams and the second main support protective top beams are horizontally arranged in the horizontal direction; protective top telescopic beams are arranged between odd rows of second main support protective top beams and even rows of second main support protective top beams at adjacent side; and telescopic lifting jacks and follow-up protective top beams are arranged among evenrows of second main support protective top beams and the odd rows of second main support protective top beams at the adjacent rear side, and between the first main support protective top beams and thesecond main support protective top beams at the foremost side. The temporary support device can realize separation of a digging process and an anchor net cable permanent support construction process,facilitates optimizing each construction process, completely realizes parallel operation of construction processes, and further improves roadway digging efficiency.
Description
technical field [0001] The invention belongs to the technical field of coal mine safety production, and in particular relates to a temporary support device and method for roadway continuous excavation with separation of excavation and anchor, which can be expanded and applied to the fields of tunnels, underground space engineering and the like. Background technique [0002] my country's coal production is mainly based on underground mining. Roadways serve as various passages for coal production such as transportation, ventilation, pedestrians, and drainage. Their stability and smoothness are the guarantee for safe and efficient mining of coal mines. According to incomplete statistics, the total length of newly dug roadways in state-owned coal mines in my country exceeds 12,000km every year. [0003] In recent years, with the vigorous development of fully mechanized mining technology and equipment in my country, million-ton working faces and even super-large working faces of ...
Claims
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IPC IPC(8): E21D19/00E21D19/04E21D17/10
CPCE21D19/00E21D19/04E21D17/10Y02E10/20
Inventor 张盛李杰胡耀敏王千红宁掌玄卞金岭赵文峰张旭龙
Owner HENAN POLYTECHNIC UNIV